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Yes and no. For example, some kinds of cancers that ONLY occur in rats have been found. It was widely believed that saccharin or cyclamates (I forget which one) caused cancer, but the fact was that rats digest, process and eliminate it differently than we do. When it is concentrated in their urine, it forms crystals, which it does not do in our urine because our urine contains a higher percentage of water. (A human with water levels in the urine as low as a rat's would already be dead of dehydration.)

The sharp-edge crystals in the rats' bladders repeatedly cut them and caused bleeding, required healing, and eventually led to a breakdown of the healing process, with uncontrolled cell growth and reproduction, called cancer-- because the bladders were continually being cut by the sharp-edged crystals and needing to be healed...! So it was not that the sweetener caused cancer. ANYTHING that crystallized in their urine like that would eventually have caused cancer.

The rats just couldn't tell us, that's all.

Stop medical experiments on mute animals-- experiment on PETA members, instead.

THOSE WORTHY OF OUR RESPECT WOULD VOLUNTEER.

11 DEC 06, 1851 hrs, GMT.

2006-12-11 05:49:11 · answer #1 · answered by cdf-rom 7 · 0 0

this is probly a joke question(?)but--having had many rats and mice over the years,i can tell u that EVERY-and i do mean 100% of them-rodent that i ever had,died of cancer in its old age.u could see the tumours,and they'd have to be put down.in the wild,they are predated by almost everything-owls,foxes,u name it.they dont live long enough to develop the disease.but 3 year old mice and 5 yr old rats are extraordinarily prone to cancer in my opinion.ive often wondered if those tests are skewed-i mean,was it the diet they were fed.or the chemicals they ingested in the lab-or,like my pets,was it just that rodents are cancer prone to begin with??????

2006-12-11 13:40:16 · answer #2 · answered by Lyn K 4 · 0 0

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